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LTC1155IN8

Dual High Side Micropower MOSFET Driver

Linear Technology 

LTC1155

TYPICAL APPLICATI S

High Efficiency 60Hz Full-Wave Synchronous Rectifier

110V AC

6.3V AC

10k

100k

2–

7

1N4148

LT1006

3+

6

1N4148

4

DS2 VS

IN1

DS1

G1

LTC1155

IN2

G2

GND

10k 10Ω

100k

18V

1N4746A

MOSFETs ARE SYNCHRONOUSLY ENHANCED WHEN RECTIFIER CURRENT EXCEEDS 300mA

*NO HEATSINK REQUIRED

**INTERNAL BODY DIODE OF MOSFET

9V/3A

DC

4 × IRFZ44*

D

D

** S

D

S **

D

** S

18V

1N4746A

S **

0.03Ω

+

4700µF

16V

1155 TA14

Push-Pull Driver with Shoot-Through Current Lockout (fO < 100Hz)

4.5V TO 6V

HI/LO

5V

100k

100k

74HC02

1N4148

10µF

0.1µF

300k

DS1 VS DS2

*

IN1

G1

LTC1155

*

IN2

G2

GND

0.01Ω

IRLZ24

VOUT

IRFZ24

1N4148

*OPPOSING GATE MUST DROP BELOW 2V BEFORE THE OTHER IS CHARGED

1155 TA15

13

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